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Bismuth-oxychloride-multiwalled carbon nanotube composite modified glassy carbon electrode for anodic stripping voltammetric determination of Zn(II)
Authors: Petrović Sandra | Guzsvány Valéria | Kónya Zoltán | Kukovecz Ákos | Ashrafi Amirmansoor | Švancara Ivan | Vytřas Karel
Year: 2015
Type of publication: ostatní - článek ve sborníku
Name of source: SCHS 2015: 52nd Meeting of the Serbian Chemical Society: book of abstracts
Publisher name: Serbian Chemical Society
Place: Belgrade
Page from-to: 19
Titles:
Language Name Abstract Keywords
eng Bismuth-oxychloride-multiwalled carbon nanotube composite modified glassy carbon electrode for anodic stripping voltammetric determination of Zn(II) Bismuth-oxychloride-multiwalled carbon nanotube composite material was applied as surface modifier of glassy carbon electrode (BiOCl-MWCN/GCE) in combination with Nafion® for the trace level determination of Zn(II) by square wave anodic stripping voltam-metry (SWASV). The method optimization encompasses the selection of the supporting electrolyte and the operational parameters of the SWASV method. The BiOCl-MWCN/GCE showed a linear response towards Zn(II) in the concentration range of 2.5-120 μg.L−1 with the LOD estimated to be 0.75 μg L−1, when accumulating for 120 s. at a potential of -1.4 V vs SCE. A satisfactory repeatability of +/-4.8% was obtained for a model solution containing 10 μg L−1 Zn(II). Composite from bismuthyl chloride; modification; glassy carbon substrate; determination.

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